Horticulture
- 561
- St. Croix Valley Christmas Tree Farm
- Minnesota and Wisconsin family tree farm. Choose from: Balsam, Fraser, Spruce, Scotch Pine, Norway Pine, and White Pine.
- 562
- Storyland Christmas Tree Farm
- Wholesale and retail trees, including balled and burlapped blue spruce and white pine. Burghill, Ohio.
- 564
- Weir Tree Farms
- Northern New Hampshire grower and seller (retail/wholesale) of Christmas trees. Balsam fir, Fraser fir, and Fralsam fir.
- 568
- Manitoba Christmas Tree Growers' Association
- Canadian association for the owners of Christmas tree farms. Information on planting, growing, shearing and care of trees for choose-and-cut or pre-cut sales, and a member directory.
- 570
- North Carolina Christmas Tree Association Carolina Christmas Tree
- North Carolina Real Christmas Tree Farms